-- U.S. Embassy in Armenia -- Armenia embassy in U.S.
Armenian Embassy/Consulate in U.S.A.
Phone Numbers
Armenian Embassy - 2225 R St., NW, Washington DC, 20008 USA 202-319-2983
Armenian Consulate - 50 N. La Cienega Blvd., Beverly Hills, CA 90211 USA 310-657-6102
Some foreign Embassies in Armenia/Russia
 Phone Numbers

US Embassy & Consulate in Armenia

1 American Avenue, Yerevan 375082, Armenia

 From US dial "011-374-1" first, then: 464-700
Fax: (011-3741) 464-742
Email: usinfo@usa.am 
US Embassy & Consulate in Russia
The American Citizen Services Unit (telephone 7-095-728-5577)
open Monday through Friday from 9:00 a.m. to 12:30 p.m. and 3:00 p.m. to 4:00 p.m. 

Go to WEB site for all information and phone number regarding visas.
Embassy of IRAN - 1 , Budaghian St. , Komitaz Ave., Yerevan , Armenia From US dial "011-374-1" first, then: 280-457, 529-830, 567-026